fix(auth): route all nostrLoggedIn listeners through signed-event verification

The previous commit only updated auth-button + the WithNostrAuth trait,
but six Volt pages (profile, benefits, election/*, members/admin) carry
their own handleNostrLoggedIn(string $pubkey) handlers. The dispatched
payload is now an array, so Livewire's container could not resolve the
string parameter and threw BindingResolutionException on every login.

- All six per-page handlers now accept the signed event and route it
  through NostrAuth::loginWithSignedEvent() like the trait does.
- NostrAuth: add currentOrIssueChallenge() so the sidebar + navbar
  auth-button mounts share one live session challenge instead of
  overwriting each other.
- verifySignedEvent: pass a normalized stdClass to swentel's verify()
  directly, skipping an unnecessary json_encode + json_decode round-trip.
- auth-button: gate the global Escape/Tab capture so it only intercepts
  keys while the overlay is actually visible.
- Update three test files that still called handleNostrLoggedIn with a
  raw pubkey to authenticate via NostrAuth::login() instead.

resources/views/livewire/association/benefits.blade.php

@@ -109,9 +109,9 @@ new class extends Component
         Flux::toast('Watchtower-Adresse in die Zwischenablage kopiert!');
     }
 
-    public function handleNostrLoggedIn(string $pubkey): void
+    public function handleNostrLoggedIn($signedEvent = null): void
     {
-        NostrAuth::login($pubkey);
+        NostrAuth::loginWithSignedEvent($signedEvent);
         $this->mount();
     }
 

resources/views/livewire/association/election/admin.blade.php

@@ -60,9 +60,9 @@ new class extends Component {
         }
     }
 
-    public function handleNostrLoggedIn(string $pubkey): void
+    public function handleNostrLoggedIn($signedEvent = null): void
     {
-        NostrAuth::login($pubkey);
+        $pubkey = NostrAuth::loginWithSignedEvent($signedEvent);
 
         $this->currentPubkey = $pubkey;
         $this->currentPleb = \App\Models\EinundzwanzigPleb::query()

resources/views/livewire/association/election/index.blade.php

@@ -39,9 +39,9 @@ new class extends Component {
         }
     }
 
-    public function handleNostrLoggedIn(string $pubkey): void
+    public function handleNostrLoggedIn($signedEvent = null): void
     {
-        NostrAuth::login($pubkey);
+        $pubkey = NostrAuth::loginWithSignedEvent($signedEvent);
 
         $this->currentPubkey = $pubkey;
         $this->currentPleb = EinundzwanzigPleb::query()

resources/views/livewire/association/election/show.blade.php

@@ -207,7 +207,7 @@ new class extends Component {
         }
     }
 
-    public function handleNostrLoggedIn(string $pubkey): void
+    public function handleNostrLoggedIn($signedEvent = null): void
     {
         $executed = RateLimiter::attempt(
             'nostr-login:'.request()->ip(),
@@ -219,7 +219,7 @@ new class extends Component {
             abort(429, 'Too many login attempts.');
         }
 
-        NostrAuth::login($pubkey);
+        $pubkey = NostrAuth::loginWithSignedEvent($signedEvent);
 
         $this->currentPubkey = $pubkey;
         $this->currentPleb = EinundzwanzigPleb::query()

resources/views/livewire/association/members/admin.blade.php

@@ -69,8 +69,10 @@ new class extends Component
         $this->plebs = $this->loadPlebs();
     }
 
-    public function handleNostrLoggedIn(string $pubkey): void
+    public function handleNostrLoggedIn($signedEvent = null): void
     {
+        $pubkey = NostrAuth::loginWithSignedEvent($signedEvent);
+
         $this->currentPubkey = $pubkey;
         $this->currentPleb = EinundzwanzigPleb::query()
             ->where('pubkey', $pubkey)->first();

resources/views/livewire/association/profile.blade.php

@@ -166,8 +166,10 @@ new class extends Component {
         $this->profileForm->nip05Handle = strtolower($this->profileForm->nip05Handle);
     }
 
-    public function handleNostrLoggedIn(string $pubkey): void
+    public function handleNostrLoggedIn($signedEvent = null): void
     {
+        $pubkey = NostrAuth::loginWithSignedEvent($signedEvent);
+
         $this->currentPubkey = $pubkey;
         $this->currentPleb = EinundzwanzigPleb::query()
             ->with([

resources/views/livewire/auth-button.blade.php

@@ -21,7 +21,10 @@ new class extends Component
         $this->isLoggedIn = NostrAuth::check();
 
         if (! $this->isLoggedIn) {
-            $this->nostrChallenge = NostrAuth::issueChallenge();
+            // Sidebar + navbar mount the same component on the same page; using
+            // currentOrIssueChallenge keeps both rendered data-attributes
+            // pointing at the same live session value.
+            $this->nostrChallenge = NostrAuth::currentOrIssueChallenge();
         }
     }
 
@@ -87,8 +90,8 @@ new class extends Component
          x-bind:aria-busy="nostrLoginInProgress"
          aria-labelledby="nostr-login-progress-heading-{{ $location }}"
          aria-describedby="nostr-login-progress-description-{{ $location }}"
-         @keydown.window.escape.prevent.stop
-         @keydown.window.tab.prevent.stop
+         @keydown.window.escape="if (nostrLoginInProgress) { $event.preventDefault(); $event.stopPropagation(); }"
+         @keydown.window.tab="if (nostrLoginInProgress) { $event.preventDefault(); $event.stopPropagation(); }"
          x-effect="document.body.style.overflow = nostrLoginInProgress ? 'hidden' : ''"
          class="fixed inset-0 z-[100] flex items-center justify-center bg-zinc-950/70 backdrop-blur-md">
         <div class="mx-4 w-full max-w-md rounded-2xl bg-white px-8 py-10 text-center shadow-2xl ring-1 ring-zinc-200 dark:bg-zinc-900 dark:ring-zinc-800">